baber/WOPTO huggingface dataset:
Patent GB-326229-A (GB)
Title: Improvements in or relating to stratified bodies, such as strengthened glass
IPC: B32B17/08
Filed: 1928-12-05
Abstract: 326,229. Triplex Safety Glass Co., Ltd., Lyttleton, W. R., Wilson, J., and Dick, H. W. Dec. 5, 1928. Compound transparent sheets. - Compound transparencies comprising glass coated with gelatine with or without an enamel and a sheet of cellulose ester, are formed by softening the cellulose ester layer and the enamel or gelatine coating with one or more solvents or plasticizers having a boiling point above 130‹ C. and uniting the sheets with heat and pressure preferably. The gelatine is applied in a humidified atmosphere so as to retain water, and the enamel preferably contains a small quantity of a plasticizer. The softening agent may consist of a mixture of ethyl or diethyl ether of ethylene glycol with one or more alkyl phthalates and one or more substances such as cyclohexanol, its homologues, or their esters, cyclohexanone or its homologues, or diethyl phthalate ethyl lactate, ethyl tartrate or diacetone alcohol. The enamel may be that described in Specification 15386/13. The sheets may be united at a temperature of 110‹-115‹ C. and a pressure of 240 lbs. per sq. in., or as described in Specification 328,919. To assist the spreading of the plasticizer when applied by spraying, it is preferable to include 20 per cent of an ester of cyclohexanol or its homologues, or cyclohexanone or its homologues, or ethyl lactate, diacetone alcohol, or diethyl phthalate. A suitable enamel for application to the glass may be made of celluloid 400 grams. acetic acid 2 litres, ethyl acetate 11 litres, amyl acetate 4 litres, tricresyl phosphate or like plasticizer 4 litres.
Patent GB-1074155-A (GB)
Title: Improvements in or relating to circuit arrangements for synchronizing the sub-carrieroscillator in a colour television receiver
IPC: H04N9/455
Filed: 1964-09-02
Abstract: 1,074,155. Frequency synchronization. PHILIPS ELECTRONICS & ASSOCIATED INDUSTRIES Ltd. Sept. 2, 1964 [Sept. 4, 1963], No. 35917/64. Heading H3A. An arrangement for synchronizing a subcarrier oscillator 10 in a colour television receiver comprises a gated mixer 2 which when opened by line flyback pulses 4 passes received subcarrier " bursts " to a pair of phase discriminators 7, 9, means connecting the output of oscillator 10 directly to discriminator 9 and via a 90 degrees phase change circuit 11 to discriminator 7, a low-pass filter 13 connecting the output of discriminator 7 to reactance means 14 controlling the oscillator frequency and a low pass filter 15 connecting the output of discriminator 9 via a 90 degrees phase shift circuit 16 to a second input to the mixer 2. At approximate synchronism a voltage which varies in accordance with the amount and sense of the phase difference between the received subcarrier signal and the oscillator signal is developed by discriminator 7 and applied to the reactance means to reduce the difference to a low value. Out of synchronism a signal having a frequency which is a function of the difference between the oscillator frequency and the received subcarrier signal is produced at the output of discriminator 9 and applied via filter 15 and phase shift circuit 16 to the second input to the mixer. This signal is mixed with the subcarrier burst signal and the product, the subcarrier burst signal and the oscillator 10 output signal, phase shifted in unit 11, are applied to the input discriminator 7. It can be shown that these signals produce at the output of the discriminator a D.C. signal proportional to the amplitude of the received sub-carrier burst signal which acts on the reactance means 14 to bring the oscillator into its synchronized condition. In a second arrangement, Fig. 2 (not shown), the phase discriminators are replaced by synchronous demodulators for demodulating the colour signals.
Patent GB-1169882-A (GB)
Title: Improvements in or relating to Resistance Welding
Inventor: GESSLER JAN KLAUS
IPC: B23K11/04
Filed: 1965-08-20
Abstract: 1,169,882. Welding by pressure. BRITISH ROPES Ltd. 18 Nov., 1966 [20 Aug., 1965], No. 35935/65. Heading B3R. In resistance butt welding wire workpieces the ends of the workpieces are butted, contact pressure is applied between the ends, a welding current is passed through the workpieces to heat the ends to forging temperature and after the forging temperature is reached a first forging pressure, higher than the contact pressure, is applied between the ends followed by a second and higher forging pressure. A stationary electrode jaw 1 and a movable electrode jaw 2 are connected to the secondary of a transformer 3 whose primary is energized via a contactor 4 controlled by a manual button 5 and a normally closed microswitch MS2. The movable jaw 2 is connected to a piston 6 in cylinder 7 having chambers 7a, 7b to which air is admitted via reducing valves 8a, 8b producing pressures P1 and P2 with P1 greater than P2. Solenoidoperated valves 9a, 9b connect the chambers to pressure or exhaust and the four control solenoids 11, 12,13, 14 are energized respectively via a contact S1/1 of a switch S1; a contact S2/1 of a switch S2; a contact S1/2 of switch S1 and S2/2 of switch S2; and normally open microswitch MS1. Depression of either switch S1 or S2 releases the other. In operation switch S1 and button 5 are pressed to admit air to both chambers 7a, 7b and close the contactor 4. The pressure differential supplies contact pressure while welding current is passed and as the wire workpieces soften the jaw 2 moves to operate switch MS2 which cuts off the current and operates switch MS 1 which exhausts chamber 7b through a throttle valve (not shown) to increase the pressure for forging. This throttle is opened or by-passed to produce a second forging pressure higher than the first. When the metal collapses the pressure falls and part of the forging takes place at low pressure. The instant at which pressure is exhausted from chamber 7b may be selected by means, e.g. photoelectric means measuring the temperature of the interface or by means measuring the pressure between the faces. With large workpieces the lower forging pressure squeezes out oxides and decarburized material in carbon steels, and the second faster movement completes forging. A timer may be used to control the duration of the welding current.
Patent GB-454822-A (GB)
Title: Respiratory equipment more particularly for use with gas masks or the like
IPC: A62B7/04
Filed: 1935-12-31
Abstract: 454,822. Respiratory appliances ; valves. SOC. ANON. DES GAZ INDUSTRIELS S. O. G. A. Z., 30, Avenue Rittweger, Brussels. Dec. 31, 1935, Nos. 36089 and 36090. Convention dates, Feb. 23 and Nov. 9. [Class 81 (ii)] [See also Group XXIX] In respiratory appliances comprising an oxygen cylinder 7 and a reducing valve 8 connected through a conduit 11 with a manifold 5 the branches of which are connected respectively to the face-piece through a filter canister, directly to the face-piece, and to a breathing bag, a valve 27 is provided in the conduit 11 which cuts off the oxygen supply on excessive inrease of pressure in the breathing bag. The valve 27 comprises a plug having a slot 33 for passage of gas and is displaceable to uncover the slot by a spring 31. The plug passes through a guide 28, screwed into boss 29 with a casing S, and has a tapered end engaging a recess 26 in a disc 25 displaceable to close the slot 33 by a diaphragm 15 acting through lazy-tongs mechanism 19 .. 23 on rise of pressure in the breathing bag transmitted through the manifold 5 and a conduit 14. The lazy-tongs mechanism comprises links 19, 20, pivoted to a part 17 attached to the diaphragm 15 and to levers 21, 22, turning about a common fixed pivot 23 and bearing against the disc 25 which is guided by an integral rib 30 having a slot through which the pivot 23 passes. The diaphragm 15 is held by a screw plug 15 and pressed by a spring 16. In a modification means are provided for opening the valve 27 in emergency such means comprising a lever pivoted to an extension of the casing S and bearing on a plug connected to the diaphragm 15 and extending through the screw plug 15<1> whereby operation of the lever forces in the diaphragm and uncovers the slot 33. The casing extension has a stop preventing outward movement of the lever and the lever engages the diaphragm plug through an adjustable screw. The conduit 11 is detachably connected to the reducing valve 8 as by a bayonet joint fitting or by a screw ring 12 having a milled edge. A cock 32 is provided to exclude atmospheric gases when charging the cylinder and reducing valve. The reducing valve 8 may be of the kind which closes on excessive increase in back pressure, and may comprise a spring-loaded two diameter plug the two faces of which are connected by a duct 42, the lift being controllable by a screw with a milled head 9.
Patent GB-1399348-A (GB)
Title: Character recognition apparatus
IPC: G06V30/148
Filed: 1971-08-02
Abstract: 1399348 Character recognition systems MEL EQUIPMENT CO Ltd 5 July 1972 [2 Aug 1971 6 Aug 1971] 36251/71 and 37057/71 Heading G4R A character field is regarded as being divided into a matrix of elementary areas, signals representing the character field are applied to a set of " black " logic masks to identify the character. The character field signals are shifted relative to the masks to provide a match signal whenever the character and a mask match. The number of matches from each mask is counted and a mask identifies the character if its count exceeds a certain threshold number. Each mask is associated with a respective " white " mask which inhibits the black masking if it detects a black elementary area (character portion) where a white area (backbround) should be. The number of white areas viewed by a white mask is small relative to the number of background areas in the field of the corresponding character. The embodiment disclosed employs raster scanning or a clocked column of photo-cells to provide serial signals representative of the elementary areas of the field. To compensate for any drop outs in the character, i.e. white areas within the character strokes, the field is effectively scanned by a 2 x 2 matrix of areas. If a particular one of these areas is black the remaining areas are set to black. This is done by feeding the character signals to a shift register, four relevant stages of the register feeding an OR gate, Figs. 11, 12 (not shown). The corrected character is read in to a shift register store, parallel signals from the store feeding the masking circuits. As the character rolls through the store the number of matches occurring during, for example, 6 rolls following detection of the first match is counted, the counter whose count exceeds a preset threshold identifying the character. The white masks inhibit the black masking, as indicated above. A further mask is provided to enable the counters only when a character is horizontally centred in the store. The mask inspects elementary areas corresponding to the two outer columns and some central columns of a matrix field represented by the shift register store, the counter being inhibited if either or both outer columns include a black bit and if any of the central columns is all white, Figs. 13, 14 (not shown). The mask match counters may each have thresholds corresponding to a character having thick, medium, or thin strokes. The character is identified by that counter which exceeds the threshold for the thickest strokes. If two or more counters exceed the thickest threshold the character may be identified by taking account of the relative times of occurrence of the match signals.
Patent GB-792089-A (GB)
Title: Carriage-return mechanism for draw-benches
IPC: B21C1/30
Filed: 1955-12-19
Abstract: 792,089. Drawing. PLATT, P. W. Nov. 13, 1956 [Dec. 19, 1955], No. 36296/55. Class 83 (4). A return-mechanism for the carriage n, Fig. 3, of a draw-bench comprises a rope b which is driven by a pulley a and is tensioned by spring-loaded pulleys e on each side of the driving pulley a. The pulleys e are mounted on bearings which slide vertically on pillars f and rest on springs g which are adjustable by lock-nuts h to vary the tension. The rope b runs over pulleys k and is coupled to a projecting arm o on the carriage n. Backward and forward movement is limited by trip switches p which stop or reverse the motor driving the pulley a.
Patent GB-1138573-A (GB)
Title: Tape reel covers
IPC: G11B23/107
Filed: 1967-08-08
Abstract: 1,138,573. Tape reel cover. INTERNATIONAL BUSINESS MACHINES CORP. 8 Aug., 1967 [8 Sept., 1966], No. 36323/67. Heading A4G. A cover for a reel of magnetic tape has side flanges covering the flanges of the reel, and the cover comprises two channel shaped bands 10 and 16 joined along their length leaving a tunnel between them and containing rubber seals 46 to contact the reel flanges. One side wall 14 of the cover may have fingers 15 for holding documents. A toggle latch can be closed to draw the cover tightly round the reel for storage. In use, the reel and cover are held on a machine in restrainers 48 and 50, with key 53 ensuring correct alignment. The latch 22, 24, 28 is opened either by hand or automatically with opening 25, so that the cover expands into grooves 58 in the restrainers, the end B to 20 of the outer band that is not attached to the inner band moving circumferentially apart from the end A to extend the length of the outer band by a length AB. As the toggle opens, the slide block 32 slides from one end of the window 36 in the outer band to the other, carrying with it the door 38 that extends about a quarter of the way round the circumference between the inner and outer bands. The door 38 slides in a clockwise direction, opening gaps 14 and 44 in the inner and outer bands to form an exit through the cover for the tape end, and aligning the gap 56 in the sliding door with the gap 54 in the tape already aligned with air inlet 52 in the restrainer 50, so that compressed air flows along the channel between the inner and outer bands until it reaches tangentially angled air jet holes 55 and 57. The holes 55 are directed in a clockwise direction, so that air flows clockwise round the reel, urging the end of the tape towards exit 14, 44 where the tape meets air from the holes 57 flowing counter-clockwise to peel off the end of the tape and urge it through the exit.
Patent GB-342051-A (GB)
Title: Improvements in or relating to electro-magnet systems
IPC: H02K7/065
Filed: 1929-11-27
Abstract: 342,051. Automatic exchange switches. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, and FORCEVILLE, E. A., 23, Fossil Road, Lewisham, both in London. Nov. 27, 1929, No. 36331. [Class 40 (iv).] The driving means for a selector comprises an electro-magnet 2 whose armature 3 drives a moving member 12 by means of the bowed leaf spring 11, the movement being transferred to the wiper arm 24 by means of the pawl 18 and the member 13 which swings about 15. The bowed leaf spring 11 also provides the restoring means for the armature and, through the member 12, for the pawl 18, and acts as an amplifier for the movement of the armature. The end 10 of the spring 11 rests against an adjustable plate 6. Alternatively two armatures may be provided acting together on the ends of the spring 11. The air gap may be adjusted by the screw 5. Specification 323,892, [Class 40 (iv), Telephones &c.], is referred to.
Patent GB-324759-A (GB)
Title: Improvements appertaining to tension pulleys for spinning, doubling, twisting and like machines used in the production of yarns or threads of fibrous substances
IPC: D01H1/241
Filed: 1928-12-10
Abstract: 324,759. Hodgson, J., and Hodgson, W. Dec. 10, 1928. Spindle-driving apparatus.-Springs a<1>, Fig. 1, a<4>, Fig. 3, are used in conjunction with the arms carrying pulleys c for tensioning the spindledriving tapes of spinning, doubling, twisting, and like machines. The spring a<1> is adjustably secured to the shaft d to allow of considerable variation in the length of the tape, and to the arm b to allow of adjustment of the pulley to the run of the tape. The spring a<4> is secured to a boss k adjustably secured on the shaft d and bears against the head of the bolt which adjustably secures the arm b to a part p pivotally mounted on the shaft d.
Patent GB-867784-A (GB)
Title: Improvements in or relating to injection moulding machines
Inventor: STIEBER WILHELM
IPC: B29C45/67
Filed: 1957-11-21
Abstract: 867,784. Injection-moulding machines. NOTHELFER, W. Nov. 21, 1957, No. 36348/57. Class 87(2). In a turret head moulding machine comprising a plurality of moulds 7, 8 opened and closed by cylinders 3 and pistons 4, an increased closing pressure is applied during injection by a stationary cylinder 14 having one or more pistons 17, 20 acting through piston rods 5, 6 and 24. The cylinder 14 has a partition 19, and oil under pressure is supplied at 29. The piston rod 24 has bores 27, 28 connecting the pressure spaces of the two pistons 17, 20. Return movement of the pistons 17, 20 is effected by cup springs 21.
Patent GB-1126280-A (GB)
Title: Device for annealing and treating the inside surface of hollow bodies of metal
IPC: B05B13/06
Filed: 1966-08-15
Abstract: 1,126,280. Endless conveyers. A. HOLL. 15 Aug., 1966 [13 Aug., 1965; 12 July, 1966], No. 36407/66. Heading B8A. [Also in Division C7] For the treatment of hollow bodies 18, a conveyer 2 transfers the bodies from an annealing station 3 to an internal lacquering station 4 and then to a furnace 5. The conveyer 2 comprises hollow rollers 6 mounted between endless chains, the rollers being rotatable by drive rollers (not shown). The bodies are trans. ferred, by air blast or mechanically, to further conveyers 16, 17 travelling in opposite directions, and are discharged at a shoot 19. The annealing station 3 comprises a series of burners 8 mounted on a carriage 7 such that the burner flames are movable in and out of the bodies 18. Further burners (not shown) which are fixed or movable horizontally, may be provided on the other side of the conveyer 2. The carriage 7 and the opposite burners may be vertically adjustable to allow for different size diameters of bodies. The lacquering station 4 includes a transversely movable carriage 10 which is vertically adjustable and which carries spray guns 11. The furnace 5 may be heated electrically, by gas or by oil. In place of the furnace, heating members mounted on a carriage, as for stations 3, 4, may be used. In a modification, Figs. 3-5 (not shown), the furnace (5) has transverse ventilation provided by an air duct (23) with outlets (24) directed towards the bodies (18). This air may be heated by a heater (25) and extraction is via a cowl (26) connected to a fan. For providing an air seal where the conveyer (2) passes into and out of the furnace, air supply ducts (29, 30) are arranged above the conveyer openings (5a, 5b). In addition to an electric panel heater (31), a heater (32, 33) provides heat for the thicker collar part of the bodies 18.
Patent GB-946313-A (GB)
Title: Improvements in or relating to fluid tight intercommunication and disconnecting devices
Inventor: BLIN JEAN
IPC: G21C13/06
Filed: 1960-10-26
Abstract: 946,313. Handling radio-active material. COMMISARIAT A L'ENERGIE ATOMIQUE. Oct. 26, 1960 [Nov. 6, 1959], No. 36739/60. Heading B4Q. [Also in Divisions B8 and F2] An opening and closing device disposed between a lower fluidtight chamber 2 which may house a conveyer and superposed fluidtight chamber 1 which permits the transfer of contaminated or dangerous material, e.g. radio-active material, toxic pulverulent substances or pyrophoric powders, between the chambers and also permits the separation of the chambers without contact of the material with the outside atmosphere comprises an upper cover 3 having an inset depending flange 3b which dips into a trough formed by a flange 5 welded around the opening in the floor of the upper chamber, the upper cover contacting the flange 5 at 11 and 12. Fitting closely within the upper cover is a lower cover 4 having a peripheral flange 4b dipping, together with the trough formed by the flange 5, into a second trough 6 welded around the rim of the opening in the lower chamber, the flange 4b having an internal angle iron ring 13 which seats on the rim. The trough 10 is filled to the level shown with a sealing liquid, for example a fused metal with a low melting point such as indium, lead or tin alloy, with liquified pitch or thermoplastic resin or with mercury or a dense solution of zinc bromide or barium iodide, so that the flanges are sealed. When fused materials are used for the seal they are in the solid state when the device is not in use. The chambers and the upper cover are made of non-magnetic material whilst the lower cover is made of magnetic material or carries a magnet on its underside. To transfer contaminated material from the upper to the lower chamber an electromagnet or permanent magnet is lowered on to the upper cover. The solid material of the seal, if used, is fused whereupon the magnet may be lifted raising both covers together to place the chambers in communication. The chambers may also be separated whilst remaining sealed by their respective covers.
Patent GB-1418349-A (GB)
Title: Apparatus for drawing tubular bodies
IPC: B26F1/00
Filed: 1973-08-02
Abstract: 1418349 Making hollow articles; cupping NATIONAL CAN CORP 2 Aug 1973 [4 Aug 1972 (2)] 36765/73 Heading B3Q Tubular articles are drawn in a single-stroke press having blank-draw stations for forming cups from metal web and an equal number of redraw stations, and means for transferring the cups laterally away from the web from each blank draw station to a corresponding redraw station. As shown there are two lines of dies spaced in the direction of web-feed, each line including two blanking and drawing punches 78, 80, 82, 84, Figs. 4A, 4B, and two redrawing punches 86, 88, 90, 92 disposed beyond the lateral edges 58, 60 of the web. Due to the offset relationship of the dies 78, 80, 82 and 84 there is either one or two idle stations between these dies and the corresponding redrawing die. After redrawing, the four streams of cams &c. are discharged through separate shoots preferably to separate ironing stations. The blanks are transferred between stations by grippers 94, 96 ...120 mounted on bars 62, 64, 66, 68, 70, 72, 74, 76 which are carried at their ends by oppositely movable frames 140, Fig. 9, controlled by barrel cams 138 and followers 134 for moving the bars and grippers longitudinally. The intermediate grippers in a group, e.g. 110, 112 in the group 108-114, are mounted on a bar 178 carried by the end grippers 108, 114 of the group. The grippers to the left of the press, i.e. those in Fig. 4A, are fixed to the bars 62, 68, 72, 74 which are attached to the left-hand frame 140; those in Fig. 4B are fixed to bars 64, 66, 70, 76 which are attached to the right-hand frame 140, so that grippers on opposite sides of the press move in opposite direction and an associated bar to which a gripper is not fixed functions as a guide for the grippers. Each frame slidably mounts a pair of cross-bars 142, 144 which are movable in opposite directions, to close the grippers, by links 164 on a shaft 162 oscillated, through gears 160, Fig. 8, a rack 156 and cam followers 155, from a cam 152 on the shaft 136 driven from the press flywheel or from a separate drive. Each cross-bar 142 is fixed to two carriers 148 for the bars 66, 68, 74, 76 and each cross-bars 144 is fixed to the opposed carriers 146 for the bars 62, 64, 70; 72, the cross-bars functioning as guides for the carriers to which they are not attached. A duplicate mechanism may be provided at the right-hand side of the press to assist in actuation of the grippers. Alternatively, other means may be used to effect gripping and releasing. The gripping surfaces may be of rubber or synthetic material.